White Paper: Minimizing downtime and maximizing elasticity with Galera Cluster for MySQL
Submitted by hingo on Mon, 12/03/2012 - 00:43
Online services today face 3 requirements that are driving the choice of a database clustering solution: 1) The need for continuous operations and greater level of high availability than was traditionally needed, 2) ability to scale-out when service popularity grows - jumps of 20 times overnight increase or more are common, 3) ability to scale-in minimizes infrastructure costs when running on cloud technology.
Increasingly, the cost of downtime can be measured directly as lost revenue per second. Studies have estimated that businesses lose $5000 per minute, or $500,000 per outage due to service downtime. Inability to scale-out when needed will similarly incur lost business transactions - often at the very moment when there was a unique opportunity to grow the business!
Galera Cluster for MySQL is a multi-master, active-active clustering solution based on high performance synchronous replication. All database nodes hold the same data at all times to minimize data loss and failover downtime. Automated provisioning of new nodes makes scale-out and scale-in easy.